Comments on: Applying Cellulose Insulation http://ecobrooklyn.com/applying-cellulose-insulation/ Green Design/Build Firm Specializing in Passive House and Salvage Renovation Thu, 12 Jan 2012 19:20:35 +0000 hourly 1 http://wordpress.org/?v=3.3.1 By: Gennaro Brooks-Church http://ecobrooklyn.com/applying-cellulose-insulation/comment-page-1/#comment-101 Gennaro Brooks-Church Thu, 22 Jan 2009 22:38:22 +0000 http://ecobrooklyn.com/?p=494#comment-101 Hi, I don't think it would take much more time to pack it. And getting it in and out is also something that can be figured out. Your idea is a good one. I like it. The whole need for packing the insulation has lessened for me, though. For the job I was speaking about I am using the cellulose for interior walls. Exterior walls have the poly iso board I have mentioned on other posts. And I was doing the cellulose more for sound proofing reasons than for insulation. Insulation on interior walls is good but not a deal breaker. But here is the thing. I have spoken to some good sound proofing people and they say that dense packing it actually AMPLIFIES sounds since the hard cellulose becomes a better transmitter of sound than loose filled cellulose. So I don't need to dense pack it. And as to the danger of loose fill cellulose settling and leaving an air space at the top of the wall, that isn't a big concern. As long as I pack it down just a bit it won't settle much anyway. Maybe a couple inches over many years which won't change the sound proofing nor will it matter for insulation. Hi,
I don’t think it would take much more time to pack it. And getting it in and out is also something that can be figured out.

Your idea is a good one. I like it.

The whole need for packing the insulation has lessened for me, though. For the job I was speaking about I am using the cellulose for interior walls. Exterior walls have the poly iso board I have mentioned on other posts.

And I was doing the cellulose more for sound proofing reasons than for insulation. Insulation on interior walls is good but not a deal breaker.

But here is the thing. I have spoken to some good sound proofing people and they say that dense packing it actually AMPLIFIES sounds since the hard cellulose becomes a better transmitter of sound than loose filled cellulose.

So I don’t need to dense pack it. And as to the danger of loose fill cellulose settling and leaving an air space at the top of the wall, that isn’t a big concern.

As long as I pack it down just a bit it won’t settle much anyway. Maybe a couple inches over many years which won’t change the sound proofing nor will it matter for insulation.

]]> By: Keith Winston http://ecobrooklyn.com/applying-cellulose-insulation/comment-page-1/#comment-100 Keith Winston Thu, 22 Jan 2009 21:13:38 +0000 http://ecobrooklyn.com/?p=494#comment-100 And how exactly were you going to get the 2x4 in and out of that gap at the top of each stud bay? It's a fine idea, but the challenge is doing an entire house in a reasonable amount of time (I'm assuming your own time is worth SOMETHING to you). Another possibility would be renting a low-end blower, and adding an inline blower to it, which can be bought for around $500 I believe. The rental unit stirs and breaks up and feeds the cellulose, and provides low back pressure, and the inline unit takes it up to dense-pak territory. I haven't tried this yet but expect to (I own an ex-rental unit, a fairly decent one). And how exactly were you going to get the 2×4 in and out of that gap at the top of each stud bay? It’s a fine idea, but the challenge is doing an entire house in a reasonable amount of time (I’m assuming your own time is worth SOMETHING to you).

Another possibility would be renting a low-end blower, and adding an inline blower to it, which can be bought for around $500 I believe. The rental unit stirs and breaks up and feeds the cellulose, and provides low back pressure, and the inline unit takes it up to dense-pak territory. I haven’t tried this yet but expect to (I own an ex-rental unit, a fairly decent one).

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